Can a gallbladder sludge cause inflammation in the gallbladder with no symptoms?

Its possible: Sludge is very small stones. The majority of gallstones are symptom free. The symptoms are pain after eating, bloating, belching and progress to severe frequent pain that lasts longer and longer. Fever, vomiting and complication of pancreatitis or liver obstruction are potentially life threatening. Okay to talk to your doctor about your diagnosis and your health. Good luck.